Home / 105,232.45-145,218.95-57,484.57

Finding the Fourth Proportional to 105,232.45, 145,218.95 and 57,484.57

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Solution

The fourth proportional to 105,232.45, 145,218.95 and 57,484.57 is: 79,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,232.45 : 145,218.95 = 57,484.57 : x
  2. Step 2: Convert to fraction form
    105,232.45/145,218.95 = 57,484.57/x
  3. Step 3: Cross multiply
    105,232.45x = 145,218.95 × 57,484.57
  4. Step 4: Simplify right side
    105,232.45x = 8,347,848,170.51
  5. Step 5: Solve for x
    x = 8,347,848,170.51/105,232.45
  6. Step 6: Final answer
    x = 79,327.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.